US PATENT SUBCLASS 556 / 54
.~.~.~ Plural chalcogens bonded directly to the metal (e.g., alkyl titanates, titanic esters, etc.)

Current as of: June, 1999
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556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
1  DF  .~ HEAVY METAL CONTAINING (e.g., Ga, In or T1, etc.) {19}
51  DF  .~.~ Titanium, zirconium, or hafnium containing (Ti, Zr, or Hf) {2}
54.~.~.~ Plural chalcogens bonded directly to the metal (e.g., alkyl titanates, titanic esters, etc.) {2}
55  DF  .~.~.~.~> Containing -C(=X)X-, wherein the X's are the same or diverse chalcogens
56  DF  .~.~.~.~> Nitrogen or halogen containing

DEFINITION

Classification: 556/54

(under subclass 51) Compounds wherein at least two chalcogens (i.e., oxygen, sulfur, selenium or tellurium) are bonded directly to the metal.

(1) Note. An example of a compound provided for herein is: [figure]